| Ptychoceratodus | |
|---|---|
| Ptychoceratodus serratus | |
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Subphylum: | Vertebrata |
| Infraphylum: | Gnathostomata |
| Superclass: | Osteichthyes |
| Class: | Sarcopterygii |
| Genus: | Ptychoceratodus |
Ptychoceratodus is an extinct genus of prehistoric sarcopterygian or lobe-finned fish.